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1. Disconnect the AC power cable from the electrical outlet. When the battery is
installed, make sure that the scale is turned OFF.
2. Loosen the M4 screws and remove the rear cover of the display.
Note: Take care not to drop the display.
3. Connect the cables to the external device through the cable gland to the terminal
blocks on the interface board.
4. Attach the connector cables (7 and 10 pins), provided with OP-03, to the
connectors on the interface board and the connectors on the main board inside the
display.
5. Secure the interface board using the two M3 x 8 screws provided with OP-03.
6. Tighten the cable glands and attach the rear cover to the display and secure it with
the screws loosened at step 2.
7. Connect the AC power cable to the electrical outlet.
8. Set the function settings “bp5”, “btpr”, “prt”. “5if” and “aCk” as necessary.
To use the OP-03 RS-232C, the function setting of “5if” must be set to “0”.
13.2.2. OP-03 Specifications
RS-232C interface
Transmission form Asynchronous, bi-directional, half-duplex
Data format Baud rate: 2400, 4800, 9600 bps
Data bits: 7 bits + parity 1bit (EVEN / ODD)
or 8 bits (non parity)
Start bit: 1 bit
Stop bit: 1 bit
Code: ASCII
Terminator: CRLF (CR:0Dh, LF:0Ah)
LSB
0
1
2
3
4
5
MSB
6
Relay output
The maximum rating of the replay output is as follows.
Maximum voltage: 50V DC
Maximum current: 100 mA DC
Maximum ON resistance: 8 Ω
Sto
p
bit
1 (-15V~-5V)
0 (5V~15V)
Start bit Data bi
t
sParity bit